The Aqua VU AV Micro 5 Plus DVR-Dt is a Complete Underwater Camera System The Same Size As A Smart Phone Now With Built-In DVR, Depth & Temperature! The all new Aqua-Vu Micro 5 Plus DVR-DT is a complete underwater camera system that is the same size as a smart phone! It works great for ice fishing, on the boat, or off the dock and can also be used for a variety of above water uses like looking into tight spaces.